Enable WebAudio support on Android/x86.

content/browser/renderer_host/render_view_host_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 323 matching lines @@
       !command_line.HasSwitch(switches::kDisableXSLT);
   prefs.xss_auditor_enabled =
       !command_line.HasSwitch(switches::kDisableXSSAuditor);
   prefs.application_cache_enabled =
       !command_line.HasSwitch(switches::kDisableApplicationCache);
 
   prefs.local_storage_enabled =
       !command_line.HasSwitch(switches::kDisableLocalStorage);
   prefs.databases_enabled =
       !command_line.HasSwitch(switches::kDisableDatabases);
+#if defined(OS_ANDROID) && defined(ARCH_CPU_X86)
+  prefs.webaudio_enabled =
+      command_line.HasSwitch(switches::kEnableWebAudio);
+#else
   prefs.webaudio_enabled =
       !command_line.HasSwitch(switches::kDisableWebAudio);
+#endif
 
   prefs.experimental_webgl_enabled =
       GpuProcessHost::gpu_enabled() &&
       !command_line.HasSwitch(switches::kDisable3DAPIs) &&
       !command_line.HasSwitch(switches::kDisableExperimentalWebGL);
 
   prefs.flash_3d_enabled =
       GpuProcessHost::gpu_enabled() &&
       !command_line.HasSwitch(switches::kDisableFlash3d);
   prefs.flash_stage3d_enabled =
@@ skipping 1922 matching lines @@
 void RenderViewHostImpl::AttachToFrameTree() {
   FrameTree* frame_tree = delegate_->GetFrameTree();
 
   frame_tree->SwapMainFrame(main_render_frame_host_.get());
   if (main_frame_id() != FrameTreeNode::kInvalidFrameId) {
     frame_tree->OnFirstNavigationAfterSwap(main_frame_id());
   }
 }
 
 }  // namespace content